LZ’s Tech FAQ: Technical FAQ: Physics and the bike throw – Dear Lennard, Per classic Newtonian physics the centre of mass of the bike-rider system will continue moving at the same velocity unless an external force is applied. You’re entirely correct that throwing the rider’s weight rearwards relative to the bike does not apply an external force — only pedaling can do that — but it’s not correct to think that this makes no difference in a sprint finish: Moving a 72kg rid… http://ow.ly/Sbeq502PmQt